Propylene Glycol (CAS 57-55-6) is available in various grades, primarily distinguished by their purity levels and intended applications. Understanding these differences is crucial for procurement managers and R&D scientists to ensure they are sourcing the correct chemical for their specific needs. USP (United States Pharmacopeia) grade Propylene Glycol is highly purified and meets stringent standards for use in pharmaceuticals, food products, and cosmetics. It is characterized by its low impurity profile, making it safe for human consumption and topical application. Industrial grade Propylene Glycol, while still of high quality, may have slightly different specifications suitable for applications such as antifreeze, heat transfer fluids, or as a solvent in certain industrial processes where human contact is minimal. As a leading manufacturer and supplier in China, we offer both USP and industrial grades of Propylene Glycol. When you choose to buy Propylene Glycol from us, we can guide you to select the grade that best fits your application’s requirements, ensuring optimal performance and compliance. Our factory is equipped to deliver both to meet diverse market demands.